*4.8. Scanning Electron Microscopy (SEM) Imaging of Edible Coatings*

We conducted SEM imaging of coating samples, which were prepared by dropcasting 0.5 mL of each coating solution onto a copper stub and drying under ambient conditions. Dried coatings were gold-coated prior to imaging using an SEM (Zeiss SUPRA 55VP, Germany) at a 10 kV accelerating voltage.
